Combination motion-picture and sound-reproducing mechanism.



A. L. KIRKWOOD.

COMBINATION MOTION PICTURE AND SOUND REPRODUCING MECHANISM.

APPLICATIQNv FILED APR. H. 1916.

Patented June4, 1918.

um my mm H H A H z fl aftozmq APPLICATION FILED APR 11, 1916.

u I m m u 9. d 1 C H ,T 0 a E x E 10 AU 3W m 18 d 6% m 6 b a L Ill 1m wdweoom fl/ A. L. KIRKWOOD.

COMBlNATlON MOTION PICTURE AND SOUND REPRODUCING MECHANISM. APPLICATION FILED APR. 11, me.

& m 1 M 4 4. W A1 E m g 3 M.% a 2 w hm M 2 mm g Y TU f V m m 3 Mn 1 1 IL Q mm QLE:: ::I A W 2 7 2 a 7 6 2 w a W HV illlw M w J 2 7 a N 2 M 4 L "ing at Blocker in the county and State of Texas, have invented certain.

A UNITED ,STATES PATENT OFFICE.

manna L. xmxwoon, or nnooxim, TEXAS.

COBINATION IOTION-PICTUBE A121) SOUND-PRODUCING MECHANISM.

' Patented June 4, 1918.

Figs. 7 and 8 are detail views ofvarious 1 2683211 Specification of Letters Intent.

' Application filed April 11, 1916. Serial No. 90,882.

To concern:

Be itknown that I, ABRAHAM L. KIRK- woon, a citizen of the United States, residof Harrison new and useful Improvements in Combination Motion-Picture and Sound-Reproducing- Mechanisms, of which the following is a specification.

. 7 This invention relates to improvements in motion picture and sound reproducing mechanisms, one object of the invention be ing the provision of a connecting mechanism between the two that will operate them in consonance, but should either get out of step, there is provided manually operable ,means caught u A furt er object of the present invention is the provision of a driving mechanism for connection to a motion picture projector :and a sound reproducing machine, the same being provided with selectively controlled clutches whereby either machine may cut out to permit the other to catch up, and

.thus maintain synchronous action between such'machmes.

A still further object of the present invention is the provision of a simple mecha nism that can be interposed between a motion picture projector and a sound reproducing machine, so that both can be operated to synchronously project the scenes and reproduce sound.

With the foregoin and other objects in view and which wil be apparent as the description proceeds, the invention resides ment and combinar set forth, the inin the peculiar arran tion of parts hereina v'ention is claimed.

In the accompanyin Figure l is a top p picture projector and mechanism connecte'd" by the operating mechanism. Fig. 2 is a front elevation of the same. Fig. 3 is'an enlarged plan view of the drawings: anview of a motlon connecting mechanism betweenthe motion picture projector and sound' reproducingmachine. Fig. 4 is a section on line 4-4 of Fig. 3; Fig.5 is a detail view of the sound box elevating mechanism.

6 is a plan view of a sound duet.

may

for halting one until the other has b tion u on the sha eing limited in scope only by what a sound reproducingv parts of the connecting mechanism.

- Journal ed in the frame .12 is a shaft 15, which is here shown as being driven b a hand crank 16, although it is. to be un erstood that a motor may also be employed, where found desirable. This shaft is provided with a longitudinal key 17 and the two reduced portions 18, the sleeve 19' carrying the large sprocket 20, through the screw pin 21 beingt connected for free rotatudina movement, while the sleeve 22 carrying the large sprocket 23, through the Y screw pin 24 engages the remaining recess or'reduced portion 18 in a similar manner.

15 but held from longi sound reproducing machine,

The sprocket 20 is connected to the sprocket 14 by a chain 25, while the sprocket 23 is connected to the drive sprocket 26 of the projector 10 by means of the chain 27 Each sleeve 19 and 22 constitutes a clutch member, for cooperation with the respective spool clutch members 28 and 29, which are carried upon the shaft 15 and are made to rotate therewith by means of ,the key 17 Thus when both clutches'are connected, and V the shaft 15 is rotated both machines 10 and 11 are operated in unison.

The two clutches are provided in order that should the machines 10 and 11 get get out of step,'the machine that is ahead, may be temporarily disconnected through its clutch, until the other machine' has caught up, at whichtime the clutch could be thrown in and thusboth machines be again operated in synchronism.

In order that the two-clutches may be manually controlled,.there is mounted in ,theframe, a bar 30, to which is pivoted both operating levers 3'1 and 32, the forked ends 33 thereof fitting upon the spool clutch members 28 and 9 Carried by the frame is thedouble segment 34, for cooperation "with the detents and 36, carried at the handle ends ofthe two respective levers.

The spring actuated trigger lever 37 or 38' is mounted upon its respective handle and controls its detent or bolt. Thus the clutch members 28 and 29 maybe engaged or disengaged, and be'locked in either position.

The sound reproducing machine here i illustr ated,.is provided with the shaft.39,

and fixed upon said shaft with the frame .40, is a cone 41, having the'lug point 42, so

that a cylinder record 43 provided with a recess 44may be properly positioned, the

other cone 45, being ad ustably mounted through'the medium of the screw 46, so

- that various lengths of records may be accommodated. The pivoted bearing member 47, permits the removal of the cone 45,

,. when introducing. or removing a record.

29 guide rod 49 for-slldin and swinging movements, and has fits feed screw engaglng The sound box 48 is mounted upon the i member 50 disposed for engagement or disengagement with. the feed screw 51, which is operated through the train of gears .52 from the shaft 39.

-'.In order that the sound box may be elevatedto disengage the record and also the feed screw when returning it or inserting a new record, *the'crank shaft 53 has its respective ends journaled in the main frame and in the frame of the sound reproducing machine so thatitscrank portion-is operably connected to the finger 54 of the sound box.. 35,

in turn is connected through 'the long red A pin 55 projects from the shaft 53, and

56 to the operating hand lever 57. This lever isin ready access to the operator, so

that the lever may be operated, and through the pawl and segment 58lock the sound box in either position.

The sound box for this purpose is to be larger, and to its sound duct 59, is detach ably connected the hook end 60 of the sound amplifying horn 61, whose enlarged end '62 I is bent to convey the sound: in the desired direction.

From the foregoing description it will be noted that; all of'the operating levers are in ready access to the operator, and that by this mechanism the motion picture projector and sound reproducing machine may be operated in synchronism. Where desirable, the shaft 13 maybe extended to operate two instead of one sound reproducer mechanism or 1n fact any sound,

making device.

What, I claim, as new, is 1- 1. The combination with the operating shaft of a motion picture projector and the operating shaft of a sound reproducing machine, of a main frame having the operating shafts journaled therein, a main drive shaft ournaled in the main frame, sprocket wheels loosely mounted on the main drive naled in 'the frame, independent transmis- --s1on mechanisms between the main driving shaft, stationary clutch members carried by the sprocket'wheels, other sprocket'wheels on the operating shafts, chains operating about the sprocket wheels for transmitting motion from the main drive shaft to the motion picture projector and tothe sound reproducing machine, movable clutch members slidably mounted on the main drive -shaft and arranged to engage the corre projector and a sound'reproducing machine,

a main frame, a main driving shaft jourshaft and the motion picture projector and the sound reproducing machine, selectively operable clutches on the main driving shaft, levers operably connected to the clutches and positioned near one end of the main frame whereby both the sound reproducing machine and the motion picture projector may be operated in unison or independently of each other, a crank shaft rockably mounted with respect to the main frame and operably connected to the sound box of the sound reproducing machine, a pin projecting from the rockably mounted shaft, a rod connected at one end of the pin, another lever pivotally mounted on the main frame near the aforementioned levers and connected to the other end of the rod whereby the sound box may be disengaged preparatory to the ac tuation of the lever for disconnecting the 110 sound reproducing machine from the mainshaft so that the sound repr'od ucing machine will be stopped 'WltllOlltlOSS of any part of the" record thereof.

3. The combination with the operating 5. shaft of a motion picture projector, and a sound reproducing machine including a frame, andoperating shaft ournaled therein,

a record cylinder engageable with the operand 'slidably mounted on the frame and engageable with the record cylinder, another shaft operably connected to the operating shaft of the sound reproducing machine and having the sound reproducer operably conne'cted. thereto,

of a main supporting frame having the operating shafts of the respective machinesjournaled therein, a main driving shaft journaled in the mainframe, independent transmission mechanisms between 0 the main driving shaft and the operating shafts to the respective machines, selectively operating clutches 0n the main driving shaft,

levers pivotally mountednear oneend of the main frame and connected to the clutches whereby both machines may be operated in unison or independently of eachother, a

rockably mounted crank shaft in'the main.

frame and in 'the frame of the sound reproducing machine and connected to the sound reproducer, another-lever mounted on the" main frame near the first mentioned levers and connected to the rockably mounted shaft so as to disengage the sound re-,

producer preparatory to the actuation 'of the lever for disconnecting the sound reproducing machine from the main driving shaft to consequently stop the sound reproducing machine without loss of any part of the record cylinder; c

In testimony whereof I afiix my signature. ABRAHAM L. KIRKWOOD. 

